I have found, doing many tests with many versions of the SHT 11,15 etc and 21, that if you connect them up, and put them over a cup of hot water ( about 5cm above) from the kettle and leave them for 30mins. They then read identical RH. I have done this with a number of combinations both genuine Sensirion and copies (2nd's?), It seems to work every time. The cheaper ones then seem to drift more quickly.
HTU21D Temperature / Humidity sensor
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HTU21D Temperature / Humidity sensor - by werk_ag - 06-06-2016, 05:10
RE: HTU21D Temperature / Humidity sensor - by Mikko - 06-06-2016, 14:43
RE: HTU21D Temperature / Humidity sensor - by hvalentim - 06-06-2016, 18:12
RE: HTU21D Temperature / Humidity sensor - by werk_ag - 08-06-2016, 06:00
RE: HTU21D Temperature / Humidity sensor - by Mikko - 06-06-2016, 19:32
RE: HTU21D Temperature / Humidity sensor - by Mikko - 09-06-2016, 14:37
RE: HTU21D Temperature / Humidity sensor - by werk_ag - 10-06-2016, 04:01
RE: HTU21D Temperature / Humidity sensor - by IzzyRiess - 09-06-2016, 16:21
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 09-06-2016, 23:27
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 10-06-2016, 11:18
RE: HTU21D Temperature / Humidity sensor - by hvalentim - 10-06-2016, 11:27
RE: HTU21D Temperature / Humidity sensor - by Mikko - 13-06-2016, 17:16
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 14-06-2016, 07:02
RE: HTU21D Temperature / Humidity sensor - by hvalentim - 14-06-2016, 10:20
RE: HTU21D Temperature / Humidity sensor - by Mikko - 14-06-2016, 16:43
RE: HTU21D Temperature / Humidity sensor - by Mikko - 21-06-2016, 19:31
RE: HTU21D Temperature / Humidity sensor - by JT118 - 21-06-2016, 23:07
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 04-07-2016, 03:06
RE: HTU21D Temperature / Humidity sensor - by werk_ag - 04-07-2016, 04:13
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 04-07-2016, 06:10
RE: HTU21D Temperature / Humidity sensor - by AllyCat - 04-07-2016, 16:49
RE: HTU21D Temperature / Humidity sensor - by werk_ag - 04-07-2016, 17:29
RE: HTU21D Temperature / Humidity sensor - by uncle_bob - 08-07-2016, 01:57
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 08-07-2016, 04:10
RE: HTU21D Temperature / Humidity sensor - by werk_ag - 12-07-2016, 02:02
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 12-07-2016, 12:08
RE: HTU21D Temperature / Humidity sensor - by hvalentim - 09-07-2016, 11:42
RE: HTU21D Temperature / Humidity sensor - by werk_ag - 08-07-2016, 03:40
RE: HTU21D Temperature / Humidity sensor - by uncle_bob - 08-07-2016, 04:00
RE: HTU21D Temperature / Humidity sensor - by JT118 - 08-07-2016, 09:15
RE: HTU21D Temperature / Humidity sensor - by werk_ag - 16-07-2016, 00:56
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 16-07-2016, 13:34
RE: HTU21D Temperature / Humidity sensor - by spudstrawb - 29-07-2016, 01:06
RE: HTU21D Temperature / Humidity sensor - by Barrow4491 - 16-09-2016, 04:54
RE: HTU21D Temperature / Humidity sensor - by werk_ag - 16-09-2016, 05:56
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